Senior Enterprise Switch Migration Engineer

Tech Aalto; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

Tech Aalto in Singapore is seeking a hands-on Network Switch Migration Engineer to plan, execute and validate enterprise switch migrations with minimal business disruption. You will coordinate with infrastructure, security, application, and operations teams to deliver secure, well-documented migrations.

The role requires 5+ years of network engineering experience and proven experience with enterprise switch migrations across Cisco/Juniper/Arista platforms.

Qualifications

• 5+ years of network engineering experience.
• Proven experience with enterprise switch migrations.
• Strong knowledge of Cisco, Juniper, Aruba, Arista, or similar platforms.
• Solid understanding of Layer 2/Layer 3 networking, VLANs, routing, STP, LACP, and redundancy.
• Practical experience with network security hardening.
• Experience with monitoring, logging, alerting, and configuration management.
• Strong troubleshooting, documentation, and stakeholder coordination skills.

Responsibilities

• Plan and execute network switch migrations, upgrades, and cutovers.
• Configure VLANs, trunks, routing, STP, LACP, redundancy, and management access.
• Perform switch staging, firmware upgrades, configuration backups, and rollback planning.
• Apply security hardening, including ACLs, secure access, port security, and unused-port restrictions.
• Integrate switches with monitoring and logging platforms using SNMP, Syslog, NetFlow, or equivalent technologies.
• Conduct pre- and post-migration connectivity, performance, security, and application testing.
• Troubleshoot migration issues and provide post-implementation support.
• Prepare migration plans, test results, network diagrams, as-built documentation, and handover materials.
• Coordinate with infrastructure, security, application, operations, and change-management teams.

Skills

Enterprise networking

Switch migrations

Cisco/Juniper/Arista

Layer 2/Layer 3 networking

Network security hardening

Monitoring & logging

Documentation & coordination

Tools

SNMP

Syslog

NetFlow

Change management tools

Job description

Tech Aalto in Singapore is seeking a hands-on Network Switch Migration Engineer to plan, execute and validate enterprise switch migrations with minimal business disruption. You will coordinate with infrastructure, security, application, and operations teams to deliver secure, well-documented migrations.

The role requires 5+ years of network engineering experience and proven experience with enterprise switch migrations across Cisco/Juniper/Arista platforms.